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(No Model.) 2 Sheets-Sheet 1 D. 8v 1. WAINE.

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N0. 507,948. Patented Oct. 31, 1893.

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No. 507,948. Patented 001:. 31 189.3.

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UNITED STATES,

PATENT OFFICE.

DAVID WAINE AND ISAAC WAINE, OF WILLENHALL, ENGLAND.

PAD LOC K.

SPECIFICATION forming part of Letters Patent No. 507,948, dated October 31, 1893.

Application filed November 19, 1892. Serial 110,452,562. (N0 model.) Patented in England October 25, 188810 1 To all whom it may concern: Be it known that we, DAVID WAINE and lSAAC 'WAINE, subjects of Her Majesty the Queen of Great Britain and Ireland, residing at Willenhall, in the county of Stafford, England, have invented certain new and useful Improvements in Chain-Padlocks, of which the following is a specification, and for which a patent has been granted to us in England, bearing No. 15,351, dated October 25, 1888.

This invention consists of the herein described improvements in chain padlocks that is those padlocks in which a chain takes the place of the usual bow or shackle of the padlock. I

By our invention the padlock can be locked without a key, is very secure, and the con struction is simplified.-

We will describe ourinvention by referring to the accompanying drawings on which-+ Figure 1 represents in sectional front elevation a chain padlock constructed according to our invention. .Fig. 2 is aside-view of the same partly in section on line X X of Fig. 1. Fig. 3 is a sectional plan of the same; in Figs. 1, and 3 the shut or bolt isin its locked position; Fig. 4: shows the same parts as Fig. 1 with the chain pressing back the shut or bolt as the chain is pulled through the padlock Fig. 5 shows the same parts of the padlock unlocked. Fig. 6 represents the spring catch separately. Fig. 7 represents the shut or bolt of the same separately. Fig. 8 shows part of the casing of the said padlock. Figs. 9 and 10 are sectional front elevations of a modified form of our invention, the padlock being shown locked in Fig. 9 and'unlocked in Fig. 10. Figs. 11 and 12 show parts of the said modification separately.

The same letters of reference indicate the same or corresponding parts in all the figures of the drawings.

Referring first more particularly to Figs. 1 to 8 both inclusive A is the padlock casing and B is the chain which takes the place of the usual bow or shackle; this chain is by preference made of sheet metal links of the shape shown each link consisting of a blank which is folded centrally and engaged with the next link like the well known chandelier chain thus forming blank spaces and holes alternately for the shut or bolt to take into;

but instead of this chain any other form of chain may be employed which has alternate blank spaces and holes for the shut or bolt. One end b of the chain is jointed to the easing A between the usual ears a, and the free end I) of the chain is by preference made as a tongue as shown for its betterinsertion in the hole a in the padlock casing.

(i is the hole in the padlock casing through which the end of the chain emerges the mechanism inside being protected by a guard or shield c which is shown separately by Fig. 8 and is provided with pegs c by which it is secured to the other part of the casing. This guard or shield c is provided with a hole 0 thronghwhich the front end of the shut or bolt D projects when the padlock is locked. The shut or bolt D is shown separately by Fig. 7. It will be seen the front d of the shut or bolt is inclined above and flat underneath. This front end is guided by the shield O and the back end is guided by being slotted at d where a pin E fixed to the lock casing passes through.

F is a spring which acts upon the shut or bolt D and continuously presses it forward and d is a lower projecting part of the shut or bolt D which is acted upon by the key G in unlocking the padlock.

H is a spring catch pivoted on the pin E and also acted upon by the spring F the front end h of the catch being notched so as to engage with the projection d on the shut D when the padlock is unlocked, as shown in Fig. 5; .the fore parth' of this spring catch is also inclined underneath so that it will be lifted by the projection 01 when the shut or bolt is pressed back in unlocking the pad lock.

71. is a tail provided on the spring catch 11 and which is operated upon by the key in unlocking the padlock as shown in Fig. 4.

When the free end b of the chain 13 is inserted in the hole a and out at the hole a in the padlock casing, it will in passing act upon the inclined upper side of the fore part d of the shut or bolt and push the same backwardly the spring F meanwhile keeping the front end of the shut or bolt pressed forwardly as the links are acting upon its upper side, so that when the chain has been pulled through the padlock casing to form a loop of the required size the shut or bolt will engage with one of the links and prevent the chain being withdrawn. To unlock the bolt and maintain the shut D in its unlocked position so that the chain can either be threaded from the padlock casing without engagingwith the bolt, the key has to be turned to engage with the lower projecting part d of the shut so as to force the shut back a little farther than it would be forced back by the chain, when the notched end 72/ of the catch will spring down and engage with the projecting part (1 as shown in Fig. 5 and maintain the shut or bolt in this position. To lock the bolt the key has to be turned in the opposite direction so as to lift the spring catch H from the projecting part cl which is done by the key coming into contact with the tail end 7&2 of the catch as shown in Fig. 4.

In the modification of our invention shown by Figs. 9, 10, ll and 12 we use one or more levels H (shown separately by Fig. 12) which aretnade open fronted like the ordinary levers in some other lever locks. This construction of the padlock is more secure than the former shown by Figs. 1 to S inclusive as the key must be of such aform as'to lift the leverfi tothe exact position for the projection d to enter the open front of the lever before the key commences to act upon the lowerprojeting p'art cl of the bolt to withdraw'thej' same.

The accompanying drawings show what we consider to be the best way for carrying our said invention into elfect but it is to be understood that our invention is not limited to the precise details illustrated, as for instance, theinternal mechanism of the lock,

the shape of the lock casing, and the form of chain, might be considerablymodified without departing from the nature of this inven- 40 tion.

What we claim as ourinvention, and desire to secure by Letters Patent, is- I 1. A chain padlock comprising a casing having an opening through it for the passage of a chain, a chain, a bolt projecting into the said chain opening, and a movable catch adapted to hold and release the said bolt, sub stantially as set forth.

2. A chain padlock casing having a through hole a a for the chain in combination with a shield or guard C for hiding and protecting the internal mechanism of the padlock substantially as hereinbefore set forth.

3. A chain pad-lock comprising a casing having an opening through it for the passage of a chain, a chain adapted to pass through the same, and a bolt extending transversely into the said chain opening, the fore end of said bolt having its upper edge inclined and its lower edge flat, for the purpose, substantially as described.

4. A chain pad-lock comprising a casing having an opening for the passage of the chain, a chain adapted to pass through the same, a bolt projecting into said opening to engage the chain, and a spring catch engaging the bolt and extending in the pathtraveled by the key to be operated, when ltlS (lesired to release the bolt, substantially as specified.

In testimony whereof we have signedin the presence of two subscribing witnesses.

DAVID WAINE. ISAAC WAINE; WVitnesses:

CHARLES BOSWORTH KELLEY, HERBERT WHITEHOUSE. 

